Anyway I'm probably jaded and old.
You rookie question about a woman being jealous of your "dancing" is entry level stuff. A women who's trying to conquer you will innately be against any quality you posses that attracts other young hot females to you, be it your sharp dress code, your socializing skills, dancing, natural looks, gym body etc...
A chick that does that is trying to bring the guy down to a pathetic enough level where she can feel comfortable leaving him.
It's got nothing to do with no dancing, simply it's implications as far as his value to other pretty girls.
Hope my Game meets your rigorous scrutiny